Flat 3, 18, Sumner Place has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 31 Oct 2019.

The property is connected to mains gas and has single glazed windows. It is heated using a boiler and radiators (mains gas).

According to the Land Registry and our network of Estate Agents, there have been 19 sales of properties similar to Flat 3, 18, Sumner Place within a radius of 270 metres since 2007.

The most recent example is 11, Rose Square, London, SW3 6RS, a leasehold flat which sold for £1,280,000 on the 25th November 2025.

Read more about house prices in SW7.

• Sold Nov 2025£1,280,000 | 2 Bed Flat11, Rose Square, London, SW3 6RS11, Rose Square, London, SW3 6RS
• Sold Aug 2024£1,750,000 | 2 Bed FlatFlat 4, 11, Cromwell Place, London, SW7 2JNFlat 4, 11, Cromwell Place, London, SW7 2JN
• Sold Sep 2023£1,500,000 | 2 Bed FlatFlat I, 46, Onslow Gardens, London, SW7 3PYFlat I, 46, Onslow Gardens, London, SW7 3PY
• Sold May 2023£2,800,000 | 2 Bed FlatFlat 3, 23, Onslow Square, London, SW7 3NJFlat 3, 23, Onslow Square, London, SW7 3NJ
• Sold Sep 2022£718,000 | 2 Bed Flat61A, Onslow Square, London, SW7 3LS61A, Onslow Square, London, SW7 3LS
• Sold Aug 2022£1,900,000 | 2 Bed Flat70, Rose Square, London, SW3 6RS70, Rose Square, London, SW3 6RS
• Sold Dec 2021£1,300,000 | 2 Bed FlatFlat 2, 23, Sumner Place, London, SW7 3EGFlat 2, 23, Sumner Place, London, SW7 3EG
• Sold Mar 2021£4,750,000 | 2 Bed FlatFlat 4, 46, Onslow Square, London, SW7 3NXFlat 4, 46, Onslow Square, London, SW7 3NX
• Sold Mar 2021£1,700,000 | 2 Bed FlatFlat 3, 24, Onslow Square, London, SW7 3NSFlat 3, 24, Onslow Square, London, SW7 3NS
• Sold Aug 2019£1,100,000 | 2 Bed Flat74, Rose Square, London, SW3 6RS74, Rose Square, London, SW3 6RS
• Sold May 2018£1,950,000 | 2 Bed FlatFlat 5, 24, Onslow Square, London, SW7 3NSFlat 5, 24, Onslow Square, London, SW7 3NS
• Sold Dec 2017£450,000 | 2 Bed FlatFlat 4, 24, Onslow Gardens, London, SW7 3ALFlat 4, 24, Onslow Gardens, London, SW7 3AL
• Sold Mar 2016£1,088,900 | 2 Bed FlatFlat 10, 32, Onslow Square, London, SW7 3NSFlat 10, 32, Onslow Square, London, SW7 3NS
• Sold Apr 2014£1,700,000 | 2 Bed FlatFlat 3, 38, Onslow Gardens, London, SW7 3PYFlat 3, 38, Onslow Gardens, London, SW7 3PY
• Sold Jul 2012£1,450,000 | 2 Bed FlatFlat 2, 19, Sumner Place, London, SW7 3EGFlat 2, 19, Sumner Place, London, SW7 3EG
• Sold Jul 2011£725,000 | 2 Bed FlatFlat 7, 11A , Cranley Place, London, SW7 3AEFlat 7, 11A , Cranley Place, London, SW7 3AE
• Sold Jul 2011£1,180,000 | 2 Bed FlatFlat 7, 24, Onslow Square, London, SW7 3NSFlat 7, 24, Onslow Square, London, SW7 3NS
• Sold Sep 2010£1,175,000 | 2 Bed Flat2, Rose Square, London, SW3 6RS2, Rose Square, London, SW3 6RS
• Sold Oct 2007£595,000 | 2 Bed FlatFlat G, 46, Onslow Gardens, London, SW7 3PYFlat G, 46, Onslow Gardens, London, SW7 3PY

Sumner Place, London, SW7 has a total of 45 addresses. According to our analysis of all the public data, Flat 3, 18, Sumner Place is the 31st largest and the 29th most expensive property on the street.

When compared to the postcode district it is £613k less expensive than the average property in SW7.

• Our Lady of Victories RC Primary School

  300 m away
• Oratory Roman Catholic Primary School

  400 m away
• Marlborough Primary School

  600 m away

• St. Thomas More Language College

  900 m away
• Chelsea Academy

  1.7 km away
• The London Oratory School

  1.8 km away

• South Kensington

  |

  200 m away
• Gloucester Road

  |

  500 m away
• Knightsbridge

  |

  1.2 km away

According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.